Analysis

Is there anybody who wants to correct this? =)

I (S) had to fill(V) out(A) a form(d.O) with about 700 questions on it (Adv)

I (pronoun headed noun phrase) had to fill (verb phrase) out (adverb phrase) a form (nounphrase with indefinite article) with about 700 questions ( prep phrase realised by a noun phrase) on it (prep phrase realised by noun phrase)